Fluid storage tank for use on oil rigs



FIG. 1 is a perspective view of a fluid storage tank for oil rigs showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a left side elevational view thereof. 

The ornamental design for fluid storage tank for use on oil rigs, as shown. 